Most likely the two lions. The sun bear will not win because the ox will kill the sun bear by hitting it with its sharp horns, and the 2 lions will claw the bear to death. 2 lions are enough to kill a fully-grown ox using their 500 pound body weights, large teeth, and thick claws to bring down the ox. If the lions avoided the ox's sharp horns and attacked on the ox's body top, the lions can win such a fight.
pack of lions.
The grizzly bear may win, but it would be injured. On the other hand, the lions may win, but would get themselves injured.
bear
Most likely the lions, but some of the pride would either get injured or killed.
Lions, especially if they are females from the same pride. The grizzly bear can defeat and kill the ox if it avoided its horns and head, but the lions will get it after the grizzly bear gets injury by the ox's body strength. If the grizzly bear attacked the 4 lions, the grizzly bear will have a chance to win because its big claws can kill 2 lions if it was strong enough to. After the lions get killed, the grizzly bear might get injured, and the ox can kill it with ease.
The brown bear because it would stand up and claw the three lions to death by swiping them with its paws.
Bear, no question.
This fight would never happen, no matter how you look at it.
sooty the bear because she/he is bigger
The five bears would definitely win. One fully-grown adult polar bear has the strength to kill three male lions with its paws.
Bear. Bears are predatory by nature. Gorillas are not, and thus can be seen as prey by a bear.
wolfverine hands down :)